β-Cyclodextrin is a cyclic heptamer composed of seven glucose units joined "head-to-tail" by alpha-1.4 links. It is produced by the action of the enzyme, cyclodextrin glycosyl transferase (CGT),on hydrolyzed starch syrups. And it is white powder and there is a cavity in its molecule which can form inclusion compounds with a range of molecules. The solubility degree of Beta-cyclodextrin in water is 1.85 g/100ml @ 25°C, melting point is about 260℃, internal diameter is 0.7-0.8nm.
CAS : 7585-39-9
Molecular Formula: C42H70O35
Molecular Weight: 1134.98
Specifications
| Items |
Index |
| Appearance |
White powder, Odorless, Minor sweet |
| Total sugar |
≥ 86.5% |
| Assay |
≥ 98.0% |
| Moisture content |
≤12.0% |
| Residue on ignition |
≤0.1% |
| Specific rotation |
+159°~+164° |
| pH |
5.0 – 8.0 |
| Color and clarity of solution |
Clear and colorless |
| Reductive sugar |
≤0.2% |
| Chloride |
≤0.018% |
| Heavy metal |
≤0.0002% |
| As |
≤0.0001% |
| Total bacteria count |
≤1000pcs/g |
| Moulds and yeasts |
≤200pcs/g |
| Escherichia coli |
Negative |